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GATE | Gate IT 2007 | Question 57

  • Last Updated : 28 Jun, 2021

The contents of the text file t1 txt containing four lines are as follows :
a1 b1
a2 b2
a3 b2
a4 b1
The contents of the text file t2 txt containing five lines are as follows :
a1 c1
a2 c2
a3 c3
a4 c3
a5 c4
Consider the following Bourne shell script :

awk - F '  '  ' {Print $1, $2} ' t1.txt |
while read a b ; do
            awk -v aV = $ a - v by = $b  - F ' '
            aV = = $1 (print aV, bV, $2 ) ' t2.txt

Which one of the following strings will NOT be present in the output generated when the above script in run?
(Note that the given strings may be substrings of a printed line.)
(A) “b1 c1”
(B) “b2 c3”
(C) “b1 c2”
(D) “b1 c3”

Answer: (C)


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